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Finding the Fourth Proportional to 247,126.28, 370,715.34 and 80,927.24

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Solution

The fourth proportional to 247,126.28, 370,715.34 and 80,927.24 is: 121,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,126.28 : 370,715.34 = 80,927.24 : x
  2. Step 2: Convert to fraction form
    247,126.28/370,715.34 = 80,927.24/x
  3. Step 3: Cross multiply
    247,126.28x = 370,715.34 × 80,927.24
  4. Step 4: Simplify right side
    247,126.28x = 30,000,969,291.86
  5. Step 5: Solve for x
    x = 30,000,969,291.86/247,126.28
  6. Step 6: Final answer
    x = 121,399.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.